Hi,
here are a couple of fixes for the amd iommu driver to fix a
few locking issues around protection-domains. Main problem
was that some traversals of ->dev_list were not locked in
any form, causing potential race conditions.
But there are more issues fixed here, for example the racy
access to protection_domain->updated and races in the
attach/detach_device code paths.
Changes are boot-tested with lockdep enabled, looked all
good so far.
Please review.
Thanks,
Joerg
Joerg Roedel (6):
iommu/amd: Remove domain->updated
iommu/amd: Remove amd_iommu_devtable_lock
iommu/amd: Take domain->lock for complete attach/detach path
iommu/amd: Check for busy devices earlier in attach_device()
iommu/amd: Lock dev_data in attach/detach code paths
iommu/amd: Lock code paths traversing protection_domain->dev_list
drivers/iommu/amd_iommu.c | 166 ++++++++++++++++----------------
drivers/iommu/amd_iommu_types.h | 4 +-
2 files changed, 85 insertions(+), 85 deletions(-)
--
2.17.1
_______________________________________________
iommu mailing list
[email protected]
https://lists.linuxfoundation.org/mailman/listinfo/iommu
